1. Tomentypnum nitens (Hedw.) Loeske 毛青藓 mao qing xian
Deutsche. Bot. Monatschr. 22: 82. 1911. Homalothecium nitens (Hedw.) H. Rob., Bryologist 65: 99. 1962. Camptothecium nitens (Hedw.) Schimp., Syn. Musc. Eur., 530. 1860. Hypnum nitens Hedw., Sp. Musc. Frond. 255. 1801. Type: Europe.
Plants rather robust, stiff, yellowish green to yellowish brown, usually glossy, in loose or dense tufts. Stems prostrate, elongate, pinnately branched, with ascending, often tomentose branches. Stem and branch leaves similar, rigid, mostly erect-appressed, sometimes curved, oblong-lanceolate, 1.53–2.07 mm × 0.36–0.57 mm, strongly plicate, slenderly acuminate toward apex; margins plane, entire; costae thin, ending at 3/4–4/5 the leaf length, often densely radiculose at back; median leaf cells linear, 50–59 µm × 3.5–5.0 µm, somewhat thick-walled; basal cells shorter, broader, pitted; alar cells scarcely differentiated. Dioicous. Perichaetial leaves lanceolate, more or less plicate. Setae elongate, to 40 mm long, reddish, smooth; capsules orange-brown, inclined to horizontal, elongate-ellipsoidal, curved, asymmetric, constricted below the mouth when dry, with short necks, stomata present; opercula long conic-rostrate; annuli well developed, consisting of 3 rows of inflated cells; exostome teeth narrowly lanceolate, dark reddish brown, cross-striolate below, papillose above, bordered, trabeculate on dorsal surface; endostome segments yellowish brown, as long as the teeth, keeled; basal membrane high; cilia 3–4, nodulose. Calyptrae cucullate, smooth. Spores spherical, 15–20 µm in diameter, minutely papillose.